论文部分内容阅读
在二棱大麦中赤霉病抗性很强的Ｒｕｓｓｉａ６号和六棱大麦中抗性很弱的ＨＥＳ４的杂交后代Ｆ２代的５６０个个体中，以随机抽出８０个个体所展开的Ｆ３—Ｆ５系统来分析赤霉病抗性的亲子相关．结果表明，随着世代的推进，系统内标准差逐渐变小，相关系数逐渐提高，到Ｆ５抗性分离逐渐稳定，Ｆ４个体和由这个个体所展开的Ｆ５系统平均值之间的相关系数为０．６７０，Ｆ４个体所在的系统平均值和Ｆ５系统的平均值之间的相关系数为０．７９０，系统之间的相关系数大于亲代个体和次代系统平均值之间的相关系数．
In 560 individuals of F2 generation of Russia 6 with strong resistance to scab in barley and resistant crosses of HES4 in hexaploid barley, F3-F5 system of 80 individuals was randomly selected To analyze the parent-related scab resistance. The results showed that with the passage of generations, the standard deviation gradually decreased, the correlation coefficient increased gradually, and the segregation of resistance to F5 gradually stabilized. The correlation coefficient between F4 individuals and the mean of F5 system developed by this individual was 0 .670, the correlation coefficient between the system average of F4 individuals and the average of F5 system is 0.790, and the correlation coefficient between the two systems is larger than the correlation coefficient between the average of the parents and the next generation system.